Pink oleander flowers.
oleander definition by Webster's New World
Origin: Midieval Latin earlier also lorandrum: altered ; from uncertain or unknown; perhaps Classical Latin rhododendron
oleander definition by American Heritage Dictionary
Origin: Medieval Latin, probably alteration (influenced by Latin olea, olive) of Late Latin lorandrum, rhododendron, alteration (probably influenced by Latin laurea, lōrea, laurel, because of its similar-shaped leaves) of Late Latin rodandrum, from Latin rhododendron; see rhododendron.